When we put your home in the MLS, that listing will get sent to Zillow, Trulia, Redfin, Realtor.com, Homes.com and many more.
Zillow will take the listing that the MLS sends and overwrite any existing listings that it has for that property. They have this policy to ensure that all listings have the same information, price, etc. The listing will now show the property as listed by us and will not show as for sale by owner. You will still receive all contacts received through Zillow and every other site.